Hello, I'm Jay Li, a full-stack developer based in Melbourne. I design and deliver end-to-end enterprise web applications, combining strong frontend and backend skills with a practical DevOps mindset. I enjoy translating complex business problems into scalable software solutions and collaborating in globally distributed teams to ship robust products on tight timelines. I have hands-on experience across Angular, Vue, Java Spring Boot, PHP Laravel, Python scripting, and AWS-based cloud deployments. I thrive in Agile environments and am motivated by building best-practice software that solves real-world challenges while prioritizing security, performance, and user experience.

Hello, I'm Jay Li, a full-stack developer based in Melbourne. I design and deliver end-to-end enterprise web applications, combining strong frontend and backend skills with a practical DevOps mindset. I enjoy translating complex business problems into scalable software solutions and collaborating in globally distributed teams to ship robust products on tight timelines. I have hands-on experience across Angular, Vue, Java Spring Boot, PHP Laravel, Python scripting, and AWS-based cloud deployments. I thrive in Agile environments and am motivated by building best-practice software that solves real-world challenges while prioritizing security, performance, and user experience.

Available to hire

Hello, I’m Jay Li, a full-stack developer based in Melbourne. I design and deliver end-to-end enterprise web applications, combining strong frontend and backend skills with a practical DevOps mindset. I enjoy translating complex business problems into scalable software solutions and collaborating in globally distributed teams to ship robust products on tight timelines.

I have hands-on experience across Angular, Vue, Java Spring Boot, PHP Laravel, Python scripting, and AWS-based cloud deployments. I thrive in Agile environments and am motivated by building best-practice software that solves real-world challenges while prioritizing security, performance, and user experience.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
See more

Language

English
Advanced

Work Experience

Web Application Developer (Frontend IoT) at Covestro
July 1, 2022 - September 30, 2024
Frontend development for Covestro's IoT web application. Built real-time Angular UI components (WebSocket/SSE) to display live lab data, integrated with pub/sub messaging (ActiveMQ, MQTT-style) via Node-RED for device communication. Implemented dynamic REST API-driven forms, interactive weighting sheets, device presets, multi-language (i18n) support, and SSO with RBAC to enhance usability and security. Contributed to API design and cloud deployment discussions in Agile, globally distributed teams (Jira, Confluence, Miro). Successfully released Phase 1 globally to labs and users across the U.S., Germany, and China, with positive feedback on usability and reduced workload.
Digitalisation Engineer at Heraeus
November 1, 2019 - July 1, 2022
• Maintained and extended a laboratory information system using PHP (Laravel) and Vue, improving coordination efficiency by 50%. • Migrated on-prem systems to cloud infrastructure and integrated Azure AD SSO for secure access. • Built internal automation tools in Python and VBA to streamline R&D operations. • Liaised with internal and external stakeholders to identify and resolve system issues, ensuring minimal workflow disruption.

Education

Engineering Degrees (Postgraduate & Undergraduate) at Monash University
March 1, 2010 - January 1, 2018

Qualifications

AWS Certified Solutions Architect – Associate
August 1, 2024 - October 24, 2025
Individual Performance Award (IPA)
January 1, 2023 - December 31, 2024

Industry Experience

Software & Internet, Manufacturing, Professional Services
    paper IoT

    A global project delivering an integrated solution for real-time lab data collection and process automation with auto-dosing hardware, built on a microservices infrastructure.
    •Developed real-time UI components in Angular using WebSocket/SSE to display live data from IoT sensors, integrating with a pub/sub messaging layer (ActiveMQ, MQTT-style event flow) via Node-RED for device communication.
    •Delivered major Angular features such as dynamic REST API-driven forms, interactive weighting sheets, device presets, multi-language (i18n) support, and SSO with RBAC, improving user experience and application security.
    •Collaborated in an Agile, globally distributed team comprising frontend/backend developers and PMs, leveraging Jira, Confluence, and Miro to align development with user needs and ensure code quality.
    •Contributed to API design, architectural discussions, and cloud deployment during regular Architecture Review Meetings led by architect/lead developer to ensure scalability and performance.
    •Successfully released Phase 1 globally to labs and users across three regions (U.S., Germany, China), receiving highly positive user feedback for its intuitive interface, ease of use, and reduced operational workload.

    paper I See My Experiment (iSME)

    •Independently designed and developed a lab management platform using Angular and Spring Boot to streamline the workflow from experiment placement to reporting.
    •Implemented OAuth2 SSO with AWS Cognito federated through Azure AD to deliver a seamless user login experience.
    •Initiated Python-based AWS Lambda workflows integrating Microsoft Graph API and S3 to automate experimental data extraction from SharePoint, reducing manual processing by ~8 hours per week.
    •Built GitLab CI/CD pipelines with Docker containerisation and Infrastructure as Code (AWS CDK) to automate and standardise deployment across testing and production environments on ECS Fargate.
    •Launched in early 2024, the application was adopted by R&D and QA teams across two business entities, reducing manual work and communication overhead equivalent to ~3 FTE annually.

    paper PU Decoder (Simulation Integration MVP)

    •Established a prototype application using Spring Boot and Angular, integrating R-based Monte Carlo simulation services to help R&D engineers and scientists predict polyurethane characteristics, from recipe setup to results analysis.
    •Adopted event-driven architecture with AWS SQS to handle simulation jobs asynchronously, improving system scalability and reliability through retry logic, dead-letter queues, and result aggregation via a polling service to the database.
    •Implemented hybrid persistence using MySQL, Redis (NoSQL), and MongoDB (NoSQL) for structured, cached, and dynamic simulation data.
    •The MVP was showcased at a company town hall, demonstrating its impact on material evaluation efficiency and generating strong interest from recipe scientists who volunteered to participate in early testing.